Rail-joint.



' No. 831.578. PATEN'IBD SEPT. 25, 1906.

w. P. & s. G. THOMSON.

RAIL JOINT.

APPLICATION IILBD r1112. 15. 1905-.

2 SHEETS-SHEET 1.

' INVENTORS M9441- pad MM).

- WITNESSES No. 831,578. PATENTED SEPT. 25, 1906.

W. P. &. S. G. THOMSON.

RAIL JOINT.

APPLICATION FILED PBB.15. 1905.

' 2 SHEETS-SHEET 2.

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No. 831,5?8. Patented. ,Sept. 25, 1906.

To (1,55 whom it may seize-err.- except that the curved flanges 3 are bent to it known that we, WILLIAM Fire-N present convex faces on the inside, these THoiison, oi Lensdowne, Delaware county, flanges having the heads 4?. and SAMUEL GARVER Tnonson, of i one, In Fig. 8 we show a form similar to that 5 Blair county, Pennsylvania, have ir shown in Fig. 3, except that the flanges 3* new and useful ltnil-Ioint, of Wilit'ii the folare inclined inwardly end are provided with lowing is a full, clear, and exact description, the heeds at. reference being had to the sect In all the formsthe heads or ribs may be drawings, fOlflliIlg pert of sp tiOll, formed either on the inside or on the outside zo in whiun of the flange or upon both the inside end out- Figures 1 to 8, inclusive, tress-sections side. showing diiferert forms of our int The advantages of our invention result (3117: in vention relates to "it t p. of joint from the forming of the head by either the inwherein splice-hers are provide-d with ieside or the outside rib or the double rib for i pending tlen es extending below the reilthickening, thus increasing the moment of hose. The xtend 1 em; 7 n 1?. inertia and giving it stifi'er her for it given 2e mno'unt ofinctal. The splice-hsristhus provided with a head along both edgeson-the same principle as e "f-reil or Lbemn, giving i we the greatest stiffness both vertienlly and let n and improve the orally for a given amount of metal. The lie henge and to provide hility to ouchling of the flange under the load one the strains. is greatly reduced, and the sections may be l we show the splicehsi's 2 as easily rolled. In the form shown in Figs. 5 25 provided with depending inn; i: I .lljlBfl end 6 the outward curve of the flange carries flanges $3 3, heving enisrgemonteir or ribs i the strains around the foot of the rail more along the only ides oi either lo" or t eiliciently to the lower head than where a The flan" s thus increased in shei'p turner smell radius is present at the by the e ter heeds, giving e stifi'er edge of the rail-foot. This larger radius also 0 a greater moment of inertia. for renders the rolling more easy. As shown in amount metal used. In Fig. 2 the drawings, our preferred structure consists e. siniiler form, in whieh the i ages 3 are of a flange the greater portion of the oody of mtluziliyineicesen in thickness toward their which lies Wholly outside of the line drawn oiver ends, forming substantially hoods from the junction of the flange proper with 3 5 whieh are enisr ged on both sides of the centhe foot of the rail and the inner edge of the tifel planes of the webs. foot of the flange. In case the flange merges in Fig. 5 we show the flanges 3 {LS cieinto the foot of the rail as a gradual curve, as Bending in a vertical irection and having shown herein, such lioint 'is the "tsngentiel heads 4* at the lower ends formed by enlnrgpoint of the foot of the rail with such curve; 0 ing the flanges on both sides. but obviously the flange may meet the foot in Fig. i we show the curved flanges 3" es of the rail abruptly, in. which case there is no eorrugstod or reverseiy bent and. provided. ten entiel point. with the enlarged ribs or heads l. ffithough we have shown our invention as in Fig. 5 we show our pi'efsrr d form in applied to T-reils, it is just as easily applied 5 which the curved ,flenges 8 are given e-oonto the girder or street-car forms.

ceve form on the inner side and provided Having thus described. our inv ent'i whet with heads or enlarged. portions 4' extending we cleiin, and desire to secure by i s? along their lower yortions. ent, is'

In Fig. '2 we snow e form similar to that 1. A splice-her for rails having a1. eely-de 50 shown Fig. 5, except that the curved penning flange to extend below e oses of flanges 3 are reverseiy or cornigeted ti 1, said flange having :2- Stir and are provided the heads i inside at orneer to its lower inFig; '3' we e form to A spline-bar for rails hsvi I to its lower end.

both sides,

one or both sides, forming a head at or near to its lower end.

7. A splice-barfor rails having a depending flange extending below the foot of the rail, the greater portion of the body of said flange lying wholly without the straight line pending flange to extend below the base of the rail, said flange having stiffening-ribs onforming a head, at or near to its lower end.

3. A splice-bar for rails having a freely-de pending flange to extend below the base of the rail, said flange being curvilinear and concave on its inner side.

I 4. A splice-bar for rails having a depending flange to extend below the base of the rail, said flange being of a corrugated or compound curved form.

5. A splice-bar for rails having a depending flange to extend below the base of the rail, said flange being of a corrugated or compound curved form and having a stiffening-rib on one or both sides, forming a head at or near flange with the foot of the rail, and the inner edge of the foot of the flange, the inner face of said flange consisting of a composite curve and having a stiflFening-rib forming a head at or near the lower end.

In testimony whereof We have hereunto set our hands.

WILLIAM P. THOMSON. SAMUEL G. THOMSON. Witnesses to W..P. Thomson:

S. E. PATTERSON, McLnon THOMSON. Witnesses to S. G.- Thomson: PATRICK J. RYDER, MoLEon THOMSON.

I 6. A splice-bar for rails having a depending flange to extend below the base of the rail, I said flange being curvilinear and concave on its inner side and having a stiffening-rib on drawn from the point of juncture of the 

